ECHANGEURS THERMIQUES EN CUIVRES BRASES ET LEUR PROCEDE DE FABRICATION PAR SOUDAGE
    1.
    发明公开
    ECHANGEURS THERMIQUES EN CUIVRES BRASES ET LEUR PROCEDE DE FABRICATION PAR SOUDAGE 审中-公开
    由铜制成的换热器的焊接来制造的方法。

    公开(公告)号:EP1450980A1

    公开(公告)日:2004-09-01

    申请号:EP02785546.9

    申请日:2002-10-14

    IPC分类号: B23K9/00

    CPC分类号: B23K9/0026 B23K2201/14

    摘要: The invention concerns a method for arc-welding of at least a metal workpiece (1) on a matrix (2) comprising at least a brazed zone (3) whereof the brazing contains copper and phosphorus, which comprises the following steps: (a) producing on at least part of the brazed zone (3), a deposition of at least a layer (5, 6, 7) of pure copper or of a copper alloy for which the phosphorus solubility limit is between about 0.1 and 3.5 % at solidification temperature; and (b) welding the metal workpiece (1) on said at least one copper layer (5, 6, 7) deposited in step (a). The invention also concerns a method for making a brazed heat exchanger using such a welding process. The invention further concerns the resulting heat exchangers and their use in cryogenic gas separation, in particular air separation in a cryogenic separating unit.

    CHARIOT REFRIGERE ET INSTALLATION DE RECHARGEMENT EN AGENT REFRIGERANT

    公开(公告)号:EP0968395A2

    公开(公告)日:2000-01-05

    申请号:EP98913852.4

    申请日:1998-03-06

    发明人: GIBOT, Claude

    IPC分类号: F25D3/12 C01B31/22

    CPC分类号: F25D3/125 A47B2031/002

    摘要: Catering service trolleys for preserving and distributing meal service trays in aeroplanes. Said trolley comprises side walls (28, 30) with double shells defining vertical channels (34) opening at their upper part into the housing (22) containing the refrigerating agent and at their lower part in the proximity of the bottom of the section (26) receiving the meal-trays, thus enabling the refrigerating gas to circulate by convection over the whole height of the trolley and a more homogeneous temperature distribution.

    摘要翻译: 餐饮服务手推车,用于在飞机上保存和分发膳食服务托盘。 所述手推车包括具有限定竖直通道(34)的双层壳体的侧壁(28,30),竖直通道(34)在其上部开口进入包含制冷剂的壳体(22)中并且在其下部部分(26)的底部附近 )接收餐盘,从而使得制冷气体通过在台车的整个高度上的对流循环和更均匀的温度分布。